Home / 189,961.94-262,149.55-103,919.07

Finding the Fourth Proportional to 189,961.94, 262,149.55 and 103,919.07

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Solution

The fourth proportional to 189,961.94, 262,149.55 and 103,919.07 is: 143,409.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,961.94 : 262,149.55 = 103,919.07 : x
  2. Step 2: Convert to fraction form
    189,961.94/262,149.55 = 103,919.07/x
  3. Step 3: Cross multiply
    189,961.94x = 262,149.55 × 103,919.07
  4. Step 4: Simplify right side
    189,961.94x = 27,242,338,160.18
  5. Step 5: Solve for x
    x = 27,242,338,160.18/189,961.94
  6. Step 6: Final answer
    x = 143,409.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.